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Finding the Fourth Proportional to 571,812.40, 858,058.80 and 216,862.30

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Solution

The fourth proportional to 571,812.40, 858,058.80 and 216,862.30 is: 325,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,812.40 : 858,058.80 = 216,862.30 : x
  2. Step 2: Convert to fraction form
    571,812.40/858,058.80 = 216,862.30/x
  3. Step 3: Cross multiply
    571,812.40x = 858,058.80 × 216,862.30
  4. Step 4: Simplify right side
    571,812.40x = 186,080,604,903.24
  5. Step 5: Solve for x
    x = 186,080,604,903.24/571,812.40
  6. Step 6: Final answer
    x = 325,422.47

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.